I see a lot of threads about people upgrading or ordering their Minis with an SSD. I generally have an idea what they do (booting and launching apps happens faster). For general use, is this worth it or is it mainly beneficial for "power users"? I used to see 7200 RPM drives offered and now Apple just offers 5400. Yes, faster is better but again, will the difference be noticeable during normal use? Finally, I believe I've seen other hard drive upgrades mentioned here so if anyone wants to add info about them that would be great! I'm pretty good with iDevices but learning about these. Thanks!